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Renesas ISL80015IRZ-T7A
- Part No.:
- ISL80015IRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL80015IRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 1.5A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,692
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Product details
Overview
ISL80015IRZ-T7A from Renesas (formerly Intersil) is a monolithic synchronous buck DC/DC converter delivering up to 1.5A continuous output current from a 2.7V–5.5V input, operating at 1MHz switching frequency with 0.6V feedback reference and integrated PMOS/NMOS power stage in an 8-pin 2mm×2mm TDFN package. It enables compact point-of-load regulation in space-constrained industrial and telecom systems.
For engineers reviewing the ISL80015IRZ-T7A datasheet, ISL80015IRZ-T7A pinout, ISL80015IRZ-T7A application, or ISL80015IRZ-T7A equivalent, key selection criteria include its 1.5A/1MHz rating, 0.6V VFB accuracy, 100% duty-cycle capability, thermal shutdown at +150°C, and absence of boot capacitor requirement due to integrated PMOS high-side switch.
Technical Context
The ISL80015IRZ-T7A implements peak current-mode PWM control with internal slope compensation (900mV/Ts) and transconductance error amplifier (40µA/V), enabling fast transient response and stable operation across 0.6V–5.5V output range. Its architecture eliminates external boot capacitance by using a PMOS high-side switch and integrates protection circuits including overcurrent (2.1–2.9A trip), short-circuit (VFB < 0.3V), negative current (−1.5A valley), and thermal shutdown (+150°C).
It features internal soft-start (1ms ramp), power-good monitoring with 15% UV/OV window and 5MΩ pull-up, VIN undervoltage lockout (2.5V rising), and 100Ω active discharge during shutdown. The device supports 100% duty cycle at 1MHz and achieves up to 95% peak efficiency with optimized external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.7V to 5.5V - supports single-cell Li-ion, USB, and 3.3V/5V rail inputs without external regulators. |
| IOUT Max | 1.5A continuous - sufficient for FPGA I/O banks, microcontroller cores, and sensor signal chains. |
| fSW | 1MHz nominal - enables use of small 2.2µH inductors and reduces EMI compared to lower-frequency converters. |
| VFB Accuracy | ±1% (0.594V–0.606V) - ensures tight output voltage regulation across temperature and load. |
| Thermal Shutdown | +150°C with +25°C hysteresis - provides robust overtemperature protection while minimizing nuisance shutdowns. |
| Quiescent Current | 7–15mA at 1MHz no load - balances light-load efficiency and startup speed for always-on subsystems. |
| Efficiency Peak | Up to 95% - minimizes power loss and thermal stress in enclosed industrial enclosures. |
Pinout & Package
ISL80015IRZ-T7A uses an 8-pin 2mm×2mm TDFN package with exposed thermal pad (EPAD) connected to PGND. The package is RoHS-compliant, moisture-sensitive level 3 (MSL3), and rated for −40°C to +125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply | Supplies both power stage and internal bias regulator; requires ≥10µF ceramic decoupling close to pin. |
| EN (Pin 2) | Enable control | Active-high logic input (1.4V threshold); pulls PHASE low via 100Ω when disabled for safe output discharge. |
| SGND (Pin 3) | Signal ground | Must be tied directly to EPAD to establish clean reference for feedback and control circuitry. |
| PG (Pin 4) | Power-good indicator | Open-drain output pulled low during soft-start or if VOUT deviates >±15% from setpoint; includes 5MΩ internal pull-up. |
| FB (Pin 5) | Feedback input | Connects to resistor divider; senses output voltage with ±1% reference (0.6V) for regulation and UV/OV protection. |
| NC (Pin 6) | No-connect | Internally unused; must be connected to EPAD for mechanical stability and thermal conduction. |
| PGND (Pin 7) | Power/analog ground | Main return path for high-current switching; must connect directly to PCB ground plane with multiple vias under EPAD. |
| PHASE (Pin 8) | Switching node | Connects to inductor; carries full switching current; discharged via 100Ω when disabled to prevent floating output. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PMOS/NMOS power stage | Eliminates external boot capacitor and reduces BOM count; rDS(ON) = 117mΩ (P) / 86mΩ (N) at VIN = 5V. |
| 100% duty-cycle operation | Enables dropout operation down to VOUT ≈ VIN − losses, critical for low-VIN applications like battery backup rails. |
| Internal soft-start and soft-stop | 1ms controlled ramp prevents inrush current; 100Ω active discharge ensures safe shutdown without external circuitry. |
| Comprehensive protection suite | Includes overcurrent (2.1–2.9A), short-circuit (VFB < 0.3V), negative current (−1.5A valley), thermal shutdown (+150°C), and UVLO (2.5V). |
| Stable internal compensation | Fixed 27pF/200kΩ RC network eliminates need for external compensation components, simplifying layout and validation. |
Applications
| Industrial PLC I/O Modules | Medical Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 1.8V/1.5A for isolated analog front-end ADCs and DACs in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary point-of-load converter supplying precision analog circuitry with low noise and tight regulation. Use Value: 0.6V ±1% VFB and 1MHz switching enable stable 1.8V rail with <15mV load regulation and minimal output ripple. | Use Scenario: Powering low-noise op-amps and instrumentation amplifiers in portable patient monitors. IC Role / Device Role / Timing Role: Compact, thermally efficient DC/DC providing clean 3.3V/1.5A from a 5V main rail. Use Value: 95% peak efficiency and integrated thermal protection ensure reliable operation in sealed medical enclosures. |
| Telecom Line Card Management | Embedded Networking Switch ASIC Core |
Use Scenario: Generating 1.2V/1.5A for microcontrollers managing SFP+ module status and diagnostics. IC Role / Device Role / Timing Role: Secondary POL regulator supporting management MCU with fast transient response. Use Value: Peak current-mode control and 1MHz fSW deliver <50µs recovery from 50% load steps, maintaining system uptime. | Use Scenario: Supplying 1.0V/1.5A to low-power Ethernet PHYs and packet processors in fanless edge switches. IC Role / Device Role / Timing Role: High-density buck converter enabling 2mm×2mm footprint per rail in multi-rail power architectures. Use Value: 2mm×2mm TDFN package with EPAD allows >1.5W dissipation in 64mm² area, meeting thermal limits without heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | 1.5A/3MHz, 2.95–6V VIN, 0.6V VFB, requires external boot cap, smaller 2mm×2mm QFN but no EPAD | Better suited for higher-input-voltage systems needing faster transient response; less thermally robust at full load | Select when 3MHz operation and wider VIN range outweigh thermal performance needs |
| MP2143GJ-Z | 2A/2MHz, 2.5–5.5V VIN, 0.6V VFB, integrated boot diode, 8-pin 2mm×2mm TDFN with EPAD | Higher current and frequency support; lacks 100% duty cycle and has different OCP threshold (2.5A typical) | Select when 2A capability and 2MHz switching are required, accepting minor differences in protection thresholds |
Compared with TPS62130ARGTR and MP2143GJ-Z, the ISL80015IRZ-T7A offers unique 100% duty-cycle operation and superior thermal design via EPAD, making it optimal for low-VIN, thermally constrained 1.5A POL applications where reliability trumps raw speed or current headroom.
Availability
ISL80015IRZ-T7A is available at Aetrix Electronics and suitable for industrial PLC I/O modules, medical sensor signal conditioning, and telecom line card management requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL80015IRZ-T7A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation acquired Intersil in 2017 and maintains its high-performance analog and power management portfolio for industrial, automotive, and communications markets.
The ISL80015IRZ-T7A belongs to Renesas' ISL800xx family of compact synchronous buck converters, designed specifically for space-constrained, thermally demanding point-of-load applications in industrial automation and infrastructure equipment.
FAQ
What is the maximum continuous output current supported by the ISL80015IRZ-T7A?
The ISL80015IRZ-T7A supports up to 1.5A of continuous output current across its full operating temperature range (−40°C to +125°C). This rating assumes proper PCB layout with adequate copper area on the EPAD and thermal vias. At ambient temperatures above +85°C, derating is required to maintain junction temperature below +150°C thermal shutdown threshold, as shown in Figure 27 of the FN6692 datasheet.
Does the ISL80015IRZ-T7A require an external boot capacitor?
No, the ISL80015IRZ-T7A does not require an external boot capacitor because it integrates a PMOS high-side MOSFET. This architecture eliminates the need for charge-pump or bootstrap circuitry, reducing component count and board area. The datasheet explicitly states this advantage in the "Features" section and functional block diagram on page 4 of FN6692 Rev 3.00.
What is the feedback reference voltage (VFB) accuracy of the ISL80015IRZ-T7A?
The ISL80015IRZ-T7A has a feedback reference voltage (VFB) of 0.600V with a tolerance of ±1%, specified as 0.594V to 0.606V at +25°C and 0.589V to 0.606V over −40°C to +125°C. This tight accuracy is confirmed in the "Electrical Specifications" table on page 6 of FN6692 Rev 3.00 and directly impacts output voltage regulation precision in designs using resistor-divider feedback networks.
How does the ISL80015IRZ-T7A handle overcurrent conditions?
The ISL80015IRZ-T7A detects overcurrent by monitoring the high-side P-FET current via an internal current-sense amplifier (CSA) with 300mV/A gain. When CSA output exceeds the OCP comparator threshold (2.1–2.9A depending on VIN), the P-FET is immediately turned off and remains off until the next switching cycle. This pulse-by-pulse limiting protects against short circuits and overload, as detailed in the "Theory of Operation" section on page 12 of FN6692 Rev 3.00.
What package type and thermal characteristics does the ISL80015IRZ-T7A use?
The ISL80015IRZ-T7A uses an 8-pin 2mm×2mm TDFN package with exposed thermal pad (EPAD), designated L8.2x2C in the ordering information (page 5 of FN6692 Rev 3.00). Its thermal resistance is θJA = 71°C/W and θJC = 7°C/W, with the EPAD required to be connected to PGND via multiple vias for optimal thermal performance and electrical integrity.
ISL80015IRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
ISL80015IRZ-T7A FAQ
1.How can I place an order for ISL80015IRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL80015IRZ-T7A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISL80015IRZ-T7A reliable?
The price and inventory of ISL80015IRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL80015IRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL80015IRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL80015IRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL80015IRZ-T7A?
ISL80015IRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL80015IRZ-T7A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISL80015IRZ-T7A?
For technical support, including ISL80015IRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL80015IRZ-T7A requirements.
6.How does Aetrix verify that ISL80015IRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL80015IRZ-T7A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISL80015IRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL80015IRZ-T7A?
All ISL80015IRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL80015IRZ-T7A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISL80015IRZ-T7A part is unused and in its original packaging.
Return procedure for ISL80015IRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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